How to Qualify for the Great British Insulation Scheme in 2025

The Great British Insulation Scheme (GBIS) is one of the most significant government-backed energy efficiency programmes currently available in the UK. Designed to help households reduce their energy bills and improve the thermal performance of their homes, GBIS provides fully funded or heavily subsidised insulation measures to qualifying homeowners and tenants across Great Britain.

What is the Great British Insulation Scheme?

Launched by the UK Government as part of its broader strategy to reduce household energy consumption and tackle fuel poverty, GBIS requires major energy suppliers to fund insulation improvements in eligible homes. The scheme focuses on the properties that need it most — those with the poorest energy efficiency ratings and those occupied by households on lower incomes.

The scheme covers a range of insulation measures including cavity wall insulation, loft insulation, solid wall insulation, flat roof insulation, and underfloor insulation. In many cases, the full cost of the work is covered by the scheme, meaning qualifying households pay nothing towards the installation.

Who Qualifies for GBIS in 2025?

There are two main routes to eligibility under the Great British Insulation Scheme. The first is the general eligibility group, which targets properties in Council Tax bands A to D in England (or equivalent in Scotland and Wales) with an EPC rating of D, E, F, or G. The second is the low-income group, which includes households receiving qualifying benefits such as Universal Credit, Pension Credit, Child Tax Credit, Income Support, or income-based Jobseeker’s Allowance.

If you fall into either category and your property would benefit from additional insulation, you are likely to qualify. Owner-occupiers, private tenants (with landlord permission), and social housing tenants may all be eligible depending on the specific measure and property type.

What Measures Are Available?

The specific measure installed in your property will depend on the results of a professional survey. Common measures funded under GBIS include loft insulation top-ups (bringing existing insulation to the recommended 270mm depth), cavity wall insulation for properties with unfilled cavities, and in some cases, external or internal solid wall insulation for properties without cavities.

How to Apply

Applying for GBIS is straightforward when you work with an approved installer like Bright Nest Energy. Simply contact our team with your basic details, and we will verify your eligibility within 48 hours. If you qualify, we arrange a professional survey of your property, complete the funding application, and carry out the installation — all at no cost to you for qualifying measures.

Why Act Now?

Government funding schemes have finite budgets and defined timescales. While GBIS is currently open and accepting applications, funding allocations can be exhausted. By applying now, you ensure the best chance of receiving fully funded insulation improvements before the scheme reaches its delivery targets.